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bazaltina [42]
2 years ago
5

During a building project, a brick is

Mathematics
1 answer:
taurus [48]2 years ago
3 0

The brick will fall to the ground after 9 secs.

<h3>What are quadratic equations?</h3>

Given the equation for height as a function of time is  h(t) = -16t2 + 1,296

The height of the brick on the ground is h(t) = 0. Substitute h(t) = 0 into the equation as shown:

  • -16t2 + 1,296 = 0

Subtract 1296 from both sides

-16t² + 1,296 - 1296 = 0 - 1296

16t² = 1296

t² = 1296/16

t² = 81

t = 9secs

Hence the brick will fall to the ground after 9 secs.

Learn more on equations here: brainly.com/question/13763238

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zloy xaker [14]

reflection of f(x)=\sqrt{x} over the y axis we get g(x)=\sqrt{-x}

Step-by-step explanation:

We need to find the reflection of f(x)=sqrt x over the y axis

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If the function f(x) is transformed over y-axis then the new function g(x) will be g(x)= f(-x)

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So, reflection of f(x)=\sqrt{x} over the y axis we get g(x)=\sqrt{-x}

Keywords: Transformations

Learn more about Transformations at:

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#learnwithBrainly

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1. What is the difference between the altitude rule and the leg rule?
Anna71 [15]

Answer:

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Step-by-step explanation:

The altitude to the hypotenuse of a right triangle is the mean proportional between the segments into which it divides the hypotenuse. Notice the triangle used with this rule. The leg of a right triangle is the mean proportional between the hypotenuse and the projection of the leg on the hypotenuse.

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